Home / 8,151.46-12,227.84-2,605.59

Finding the Fourth Proportional to 8,151.46, 12,227.84 and 2,605.59

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Solution

The fourth proportional to 8,151.46, 12,227.84 and 2,605.59 is: 3,908.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,151.46 : 12,227.84 = 2,605.59 : x
  2. Step 2: Convert to fraction form
    8,151.46/12,227.84 = 2,605.59/x
  3. Step 3: Cross multiply
    8,151.46x = 12,227.84 × 2,605.59
  4. Step 4: Simplify right side
    8,151.46x = 31,860,737.63
  5. Step 5: Solve for x
    x = 31,860,737.63/8,151.46
  6. Step 6: Final answer
    x = 3,908.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.